Vacuum cleaner



FIG. 1 is a left side perspective view taken from the front and above of a vacuum cleaner showing our new design:

FIG. 2 is a front view thereof;

FIG. 3 is a right elevational view; the left view being a mirror image thereof;

FIG. 4 is rear view thereof; and,

FIG. 5 is a plan view thereof.

The details shown in broken lines in all views are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a vacuum cleaner, as shown and described. 